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利用间苯二酚与对羟基苯甲醛采用一步法合成四-(p-羟基苯基)间苯二酚杯[4]芳烃,通过红外、核磁表征产物结构。利用浓硫酸在四-(p-羟基苯基)间苯二酚杯[4]芳烃上引入磺酸基,制备了水溶性良好的磺化四-(p-羟基苯基)间苯二酚杯[4]芳烃,并对磺化四-(p-羟基苯基)间苯二酚杯[4]芳烃在山羊酸皮鞣制中的工艺条件进行优化。结果表明:磺化四-(p-羟基苯基)间苯二酚杯[4]芳烃具有鞣性,最优鞣制工艺为鞣制p H值4.5,鞣剂用量10%,鞣制温度35℃。最优鞣制工艺鞣制后坯革的收缩温度达到70.9℃,增厚率为38.18%,抗张强度为27.57N/mm2,撕裂强度达到75.02N/mm。
The tetrakis (p-hydroxyphenyl) resorcinocalbi [4] arene was synthesized by one-step reaction of resorcinol and p-hydroxybenzaldehyde. The structure of the product was characterized by IR and NMR. The sulfonic acid group was introduced into the tetrakis- (p-hydroxyphenyl) resorcinocalcene [4] arene with concentrated sulfuric acid to prepare a water-soluble sulfonated tetrakis- (p-hydroxyphenyl) [4] arene, and the process conditions of sulfonated tetrakis- (p-hydroxyphenyl) resorcinocalcin [4] arene tanned in goat acid leather were optimized. The results show that the sulfonated tetrakis (p-hydroxyphenyl) resorcinocalix [4] arene is tannin. The optimal tanning process is tanning pH 4.5, tanning agent 10% and tanning temperature 35 ℃. The tanning temperature of tanned billets reached 70.9 ℃, the thickening rate was 38.18%, the tensile strength was 27.57N / mm2 and the tear strength reached 75.02N / mm.